Perform the Operation Indicated $$\frac { 4 y } { x ^ { 2 } - y ^ { 2 } } + \frac { 4 x } { y ^ { 2 } - x ^ { 2 } }$$

question 84

Multiple Choice

Perform the operation indicated. Simplify.
- $$\frac { 4 y } { x ^ { 2 } - y ^ { 2 } } + \frac { 4 x } { y ^ { 2 } - x ^ { 2 } }$$

• A) \(\frac { 4 } { x - y }\)
• B) \(\frac { y - x } { x ^ { 2 } - y ^ { 2 } }\)
• C) \(- \frac { 4 } { x + y }\)
• D) \(\frac { 4 } { x + y }\)

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Definitions:

Demand Curve

A graph showing the relationship between the price of a good and the quantity demanded, typically downward sloping.

Intertemporal Price Discrimination

Practice of separating consumers with different demand functions into different groups by charging different prices at different points in time.

Coupons

Vouchers or codes that offer a discount on the purchase price of goods or services, usually issued by manufacturers or retailers to stimulate demand.

Two-part Tariff

A pricing strategy that involves a fixed charge plus a variable usage rate.